Welcome to the Worldwide Greathead family my One-Name Study - Sources 4
- [S20] Letters between Eileen Huby and Jan Cooper from 14 February 2001.
- [S54] Letters between Ken Usher and Jan Cooper from 6 April 2004.
- [S73] Letters between John Birks and Jan Cooper from 28 July 2004.
- [S122] E-mails between Roger W Ward and Jan Cooper from 13 September 2005.
- [S147] E-mails between Nick Deacon and Jan Cooper from 13 April 2006.
- [S238] Emails between Jilian and Jan Cooper from 21 October 2008.
- [S341] E-mails between Emily Bianchi-Bazzi née Davies and Jan Cooper from 12 February 2003.
- [S349] E-mails between Peter Lamb and Jan Cooper from 19 January 2007.
- [S531] E-mails between Albert George Usher and Jan Cooper from 15 January 2009.
- [S549] E-mails between Susan Hadden née Golightly and Jan Cooper from 22 August 2007.
- [S805] Letters between Robin Verrill and Jan Cooper from 30 December 2000.
- [S1086] E-mails between Catherine Harris née Birks and Jan Cooper from 9 November 2009.
- [S5181] Letters between Norman Greathead and Jan Cooper from 2 March 2003.
- [S5561] Emails between Thelma Richardson née Hill and Jan Cooper 2 April 2003.
- [S11751] Emails between Nicky Huitson and Jan Cooper from 8 November 2005.
- [S14554] Emails between Jordan Kingsford and Jan Cooper from 20 July 2006.
- [S14719] Research into "in laws" family.
- [S15268] E-mails between Roger Turmaine and Jan Cooper from 3 December 2005 Where suggested information came from a collaboration with Roger Smith, it should read Richard Smith and sadly he died on 5 October 2004 in Inverness.
- [S17885] Emails between Rebecca Tomlinson-Christian and Jan Cooper from 30 December 2006.
- [S20230] Emails between Carolyn Foley née Floyd and Jan Cooper from 4 January 2008.
- [S21345] Emails between Deborah Tate née McDonald and Jan Cooper from 2 September 2008.
- [S23063] E-mails between Tony Laverick and Jan Cooper from 11 September 2005.
- [S24100] E-mails between Richard Pierce and Jan Cooper 29 July 2008.
- [S40021] Commonwealth Graves website.
- [S47001] General Register Office, Information taken from Death certificate of daughter.